Our Galaxy appears to be long overdue for the occurrence of another Supernova. Find some information on Supernova rates for

galaxies like ours and report those results. When was the last Supernova to occur in our galaxy? Based on the supernova rate,

do you think that our Galaxy has been deficient in the production of supernova over the last few hundred years?

Critically discuss the two leading theories for the origin of water on the Earth in terms of their overall credibility as the

best explanation and cite any deficincies in these ideas.

A dramatic new view of the geologic history of the Earth has arisen in the last few years. This view is quite controversial

and is known as Snowball Earth. Summarize what this theory is and what is some of the evidence for and against this

hypothesis.

Summarize the reasons why there is an astrobiological expectation for primitive life on Europa, a moon of Jupiter.

The RNA World is an alternative hypothesis to the orgin of life. Do some research and determine how deep sea hydrothermal

vents provide support to the RNA World Theory.